21557085 is an odd 8-digits composite number following 21557084
and preceding 21557086 . In scientific notation, it is written as 2.1557085 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 10451840 positive integers (up to 21557085) that are relatively prime to 21557085.
21557085 has 8 divisors, whose sum is 29265600
The reverse of 21557085 is 58075512
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred fifty-seven thousand eighty-five
Scientific notation
2.1557085 × 10^7
Engineering notation
2.1557085 × 10^6
Prime Factorization
3 × 55 × 130649
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21557085
Product of the distinct prime numbers
The prime factorization of 21557085 is 3 × 55 × 130649.
Since it has a total of 3 prime factors.
6 , 3 , 66 , 93 , 403 , 834 , 867 , 6648 , 49476 , 38713 , 830533 , 476608 , 4843072 , 3206255 , 71511542 , 77031582 , 110118238 , 999575286 , 3765887510 , 9402622067
n×2
43114170
n×3
64671255
n×4
86228340
n×5
107785425
n÷2
10778542.5
n÷3
7185695
n÷3
5389271.25
n÷5
4311417
n2
464707913697225
n3
1.0017747995744E+22
n4
2.1595344505283E+29
n5
4.6553267710466E+36
2 √n
4642.9608010406
3 √n
278.3107690442
4 √n
68.139275025793
5 √n
29.289907950956
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21557084
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21557085 can be divided by 8 positive divisors.
The sum of these divisors (counting 21557085) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001110111101011101
3
Ternary
1111120012202120
4
Quaternary
1102032331131
5
Quinary
21004311320
6
Senary
2050013153
8
Octal
122167535
10
Decimal
21557085
12
Duodecimal
72771b9
16
Hexadecimal
148ef5d
20
Vigesimal
6eece5
36
Base36
cu1jx
md5
db5a7ba56d694adaa6fb3d3d6b28a3e7
sha1
9f5da37e21eac6eee5de99e426273e9a93a6dfa5
sha256
74dec3f14a53957332bd5a6235c1e1b2da5675f4ff0e36184b474d2d48fdf45e
sha512
faab8fe80ad1e6662c517576e24f339b982798ae72b59d2114e35d8fc7a89224ee8ac9855d5d9d510e13a08a92da2210ed2d71a48e62a6dbe9945cbf30fe7f6f
ripemd-160
9fadc350e6c094a703d743fdeb8b9f616e5a2e56
Diameter
43114170
Circumference
135447159.73762
Area
1.4599229677362E+15
Volume
4.196224467859E+22
Surface area
5.839691870945E+15
Circumference
135447159.73762
Perimeter
86228340
Area
464707913697225
Diagonal
30486321.97223
Surface area
2788247482183350
Volume
1.0017747995744E+22
Space diagonal
37337966.483081
Perimeter
64671255
Area
2.0122442930073E+14
Altitude
18668983.24154
Surface area
2.0122442930073E+14
Volume
1.1806029233347E+21
Height
10162107.324077